Correct typos in comments and documentation

Author: per1234

examples/ReadSensorsImperial/ReadSensorsImperial.ino

@@ -3,7 +3,7 @@
 
   This example reads data from the on-board HTS221 sensor of the
   Nano 33 BLE Sense then, prints the temperature and humidity sensor
-  values in imeprial units to the Serial Monitor once a second.
+  values in imperial units to the Serial Monitor once a second.
 
   The circuit:
   - Arduino Nano 33 BLE Sense
@@ -24,7 +24,7 @@ void setup() {
 }
 
 void loop() {
-  // Passing in FAHRENHEIT as the unit parameter to ENV.readTemperature(...),
+  // Passing in FAHRENHEIT as the unit parameter to HTS.readTemperature(...),
   // allows you to read the sensor values in imperial units
   float temperature = HTS.readTemperature(FAHRENHEIT);
   float humidity    = HTS.readHumidity();